package club.zhangliyuanblog.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.cloud.commons.util.IdUtils;
import org.springframework.stereotype.Service;

/**
 * @author liyuan.zhang
 * @date 2021/4/23 18:03
 */
@Service
public class PaymentService {


    // ==============服务降级
    public String paymentOk(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "paymentOk_" + id + "O(∩_∩)O";
    }

    @HystrixCommand(fallbackMethod = "paymentTimeoutHandle", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")
    })
    public String timeout(Integer time) {
        try {
            Thread.sleep(time * 1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + "timeout_" + "耗时" + time + "秒钟";
    }

    public String paymentTimeoutHandle(Integer id) {
        return "线程池:" + Thread.currentThread().getName() + "paymentTimeoutHandler,id:" + id;
    }


    // =============服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),// 请求时间
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id) {
        if (id < 0) {
            throw new RuntimeException("*******id不能为负数");
        }
        String serialNum = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t调用成功，流水号："+ serialNum;
    }

    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id不能为负数，请稍后再试。┭┮﹏┭┮" + id;
    }

}
